html,
body {
  margin: 0;
  padding: 0;
  width: 100%;
  height: 100%;
}

body {
  background-image: url(../images/timg2.jpg);
  background-size: cover;
  background-position: center;
  font: 14px 'microsoft yahei';
  color: #333;
  font-weight: 500;
}
